Computer Science Calculations (old name: Informatic Calculations) is the best app in the IT sector, it has many calculations that can help you in your work. It can not miss in your smartphone!

All tools present
Byte conversion - Dec, bin, oct, hex conversion - Signed number representations: Signed magnitude, One's complement, Two's complement - Bitwise operations - Shift and rotate bits - Password generation - Random number generation - Base 64 encoding / decoding - URL encoding / decoding - MD5, SHA, CRC-32 hash generation - Unix Timestamp conversion - POE calculation - Subnet calculation - Data transfer time - Wake on lan - RGB/HEX conversion

Resources
Common character encodings - ASCII character codes - HTML entities and special characters - Material Design color palettes - Best Unix commands - Language codes (ISO 639-1) - Country codes (ISO 3166-1)

String manipulation
Characters, words, lines counting - Text inversion - Uppercase / Lowercase - Removal space and carriage return - Accented characters cleaning - Strings replacement - String / Binary conversion